GCD of 91, 724, 630, 721 Calculator

Given Input numbers are 91, 724, 630, 721

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 91

List of positive integer divisors of 91 that divides 91 without a remainder.

1, 7, 13, 91

Divisors of 724

List of positive integer divisors of 724 that divides 724 without a remainder.

1, 2, 4, 181, 362, 724

Divisors of 630

List of positive integer divisors of 630 that divides 630 without a remainder.

1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630

Divisors of 721

List of positive integer divisors of 721 that divides 721 without a remainder.

1, 7, 103, 721

Greatest Common Divisior

We found the divisors of 91, 724, 630, 721 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 91, 724, 630, 721 is 1.

Therefore, GCD of numbers 91, 724, 630, 721 is 1

Given Input Data is 91, 724, 630, 721

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 91 is 7 x 13

Prime Factorization of 724 is 2 x 2 x 181

Prime Factorization of 630 is 2 x 3 x 3 x 5 x 7

Prime Factorization of 721 is 7 x 103

The above numbers do not have any common prime factor. So GCD is 1

Step1:

Let's calculate the GCD of first two numbers

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(91, 724) = 65884

GCD(91, 724) = ( 91 x 724 ) / 65884

GCD(91, 724) = 65884 / 65884

GCD(91, 724) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 630

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(1, 630) = 630

GCD(1, 630) = ( 1 x 630 ) / 630

GCD(1, 630) = 630 / 630

GCD(1, 630) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 721

The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)

LCM(1, 721) = 721

GCD(1, 721) = ( 1 x 721 ) / 721

GCD(1, 721) = 721 / 721

GCD(1, 721) = 1

GCD of 91, 724, 630, 721 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 34, 411, 606, 753
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• GCD of 33, 191, 937, 822

1. What is the GCD of 91, 724, 630, 721?

GCD of 91, 724, 630, 721 is 1

2. Where do I get the detailed procedure to find GCD of 91, 724, 630, 721?

You can find a detailed procedure to find GCD of 91, 724, 630, 721 on our page.

3. How to find GCD of 91, 724, 630, 721 on a calculator?

You can find the GCD of 91, 724, 630, 721 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.